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Computer Networking Basics and Certification

Wireless Networking Your PC
Here in one place is everything you need to know about wireless networking your PC. More ...

Bluetooth Basics - Bluetooth Technology Tutorial
You see advertisements for Bluetooth enabled cell phones, PDAs, and laptops, and all sorts of different devices taking advantage of this wireless standard. But, what is it? Bluetooth technology is nothing new, but in many respects it still seems to be more of a buzz word rather than a well understood, commonly accepted technology. More ...

What is a Proxy Server?
A Proxy Server is a piece of software that works at the Application layer of the OSI model to increase the security of a network. A proxy server acts as an intermediary between the internal network and external networks. More ...

What is DNS?
Have you ever wondered what happens when you enter, or click on, a web address in your browser? How does your computer connect to the Web site you requested? Part of what makes that happen is the Internet's Domain Name Service (DNS). More ...

Network+ Certification Exam Tutorial - DHCP And RARP
Part of passing the Network+ exam is mastering the many different protocols and services you're introduced to in your studies, and that's especially hard when two protocols do much the same thing! That's the case with RARP and DHCP, so let's take a close look at these two protocols and why we use them in the first place. More ...

How to Study For and Pass the CompTIA Network+ Exam
CompTIA certification is an advantage because it provides proof to employers that you have the competence required to perform the job. It can help you acquire employment in fact many employers require CompTIA certification. More ...

Home and Small Office Networking Guide
With the plethora of desktop and mobile devices in your home or office connectivity between everything and to the Internet is vital for maximum productivity and entertainment. This guide walks through the various standards, the devices that support flexible connectivity options and how you can use them for maximum benefit. More ...

Packet Switching Store-and-Forward Transmission
To send a message from a source end system to a destination end system, the source breaks long messages into smaller chunks of data known as packets. Most packet switches use store-and-forward transmission at the inputs to the links. Store-and-forward transmission means that the packet switch must receive the entire packet before it can begin to transmit the first bit of the packet onto the outbound link. More ...

Satellite Broadband Internet Service
Satellite broadband internet service transmits and receives signals between a ground dish antenna and a geosynchronous satellite. A geosynchronous satellite orbits the Earth with a period equal to the Earth's rotational period and therefor appears motionless, at a fixed position in the sky. More ...

The Function of the Three Planes of Junos Network OS
The architecture of the Junos operating system cleanly divides the functions of control, services, and forwarding into different planes. Each plane provides a critical set of functionality in the operation of the network. More ...

Computer Networking Basics
A basic network consists of two or more computers connected to each other by cable. Computers that are connected to the network can send messages or email back and forth, and can share data, applications, and peripherals. More ...

Networking Foundation Topic - Routing
For traffic to flow between networks, the traffic has to be routed, thus routing and routers is a key networking topic. This article discusses how routing occurs. More ...

Synchronous, Asynchronous, Isochronous. What Does it Mean?
Synchronous, Asynchronous and Isochronous are all methods used to transfer streams of data. This article uses waveform diagrams to explain the difference. More ...


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